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Responses of PLFA and NLFA to Fertilization in a Chinese Arable Mollisol

文献类型： 会议论文

第一作者： Bai Zhen

作者： Bai Zhen 1 ; Zhang Xudong 1 ; He Hongbo 1 ; Xie Hongtu 1 ; Zhang Wei 1 ; Wang Jingkuan 2 ; Zhu Ping 3 ; Peng Chang 3 ;

作者机构： 1.Terrestrial Ecological Process Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China

2.Shenyang Agricultural University, Shenyang 110161, China

3.Northeast Agricultural Research Center of China, Jilin Academy of Agricultural Sciences, Changchun 130033, China

关键词： PLFA;NLFA;soil microorganisms;fertilization;Chinese Mollisol

会议名称： World Congress of Soil Science

主办单位：

页码： 2444-2447

摘要： The effects of 17y pig manure (PM) (organic matter, 9 t/hm~2 each year) and inorganic fertilizer [N, 150 kg/hm~2 each year (urea); P, 32.73 kg/hm~2 each year (calcium hydrogen phosphate)] amendments on phospholipids fatty acid (PLFA) and neutral lipid fatty acid (NLFA) in different soil microbial communities were investigated. The fertilizer treatments were as follows: CK, N (nitrogen), NP (nitrogen + phosphorus), MCK (PM only), MN (PM + nitrogen), MNP (PM + nitrogen + phosphorus). The result of PLFA analysis showed that the addition of PM, nitrogen or phosphorus fertilizer significantly increased soil microbial biomass. As fungal-to-bacterial PLFA ratio for CK was dramatically higher than for the PM treatments, it was reasonable that the fungi might be adapted to nutritional deficiency more easily than bacteria. As 17 years of cropping with single N application resulted in low P availability and led to a great increase in fungal NLFA contents, P was confirmed to be the important limiting nutrientfor fungal growth in this arable Mollisol.

分类号： S15-532

  • 相关文献

[1]Long-term fertilization effects on carbon and nitrogen in particle-size fractions of a Chinese Mollisol. Yan, Y.,He, H.,Zhang, X.,Chen, Y.,Xie, H.,Bai, Z.,Yan, Y.,Zhang, X.,Chen, Y.,Zhu, P.,Ren, J.,Wang, L.. 2012

[2]Carbon and nitrogen pools in different aggregates of a Chinese Mollisol as influenced by long-term fertilization. Chen, Ying,Zhang, Xudong,He, Hongbo,Xie, Hongtu,Yan, Ying,Zhang, Xudong,Chen, Ying,Zhu, Ping,Ren, Jun,Wang, Lichun.

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